Display screen or portion thereof with graphical user interface



FIG. 1 is a front view of a first embodiment of a display screen or portion thereof with graphical user interface showing my new design; and,

FIG. 2 is a front view of a second embodiment of a display screen or portion thereof with graphical user interface showing my new design.

The broken line showing of a portion of a display screen and a mobile device in FIGS. 1 through 2 forms no part of the claimed design. The broken line showing of text and portions of the graphical user interface in FIGS. 1 through 2 represents environmental subject matter and forms no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with graphical user interface, as shown and described. 